Error import pbwsclient120.pbx file

Hello,

I'm working with PB 12.1 Build 6875 under Windows Seven.

When i try to import pbwsclient120.pbx in a pbl, this message appears :

"Importing C:\Program Files (x86)\Sybase\Shared\PowerBuilder\pbwsclient120.pbx  -  Error: The file is not a valid dll or pbx file."

It works fine with pbwsclient120.pbx from C:\Program Files (x86)\Fichiers Communs\Powersoft Shared.

Some posts about this problem invoke a bad version of libeay.dll but that library is not used in my case.

Any idea ?

Thanks

Gilles